code: def testConstruct_InfraBlessingReplacesModel(self):
      pusher = component.Pusher(
          # model=self._model,  # No model.
          model_blessing=self._model_blessing,
          infra_blessing=self._infra_blessing,
          push_destination=self._push_destination,
      )
  
      self.assertCountEqual(
          pusher.inputs.keys(), ["model_blessing", "infra_blessing"]
      )
  
file_path: tfx/tfx/components/pusher/component_test.py
imports: import tensorflow
  from tfx.components.pusher import component
  from tfx.components.pusher import executor
  from tfx.dsl.components.base import executor_spec
  from tfx.orchestration import data_types
  from tfx.proto import pusher_pb2
  from tfx.types import channel_utils
  from tfx.types import standard_artifacts
  from tfx.types import standard_component_specs
label_desc: Use image node_id 6 for calling the ComponentTest obj's underlying member method code with example usage: obj.testConstruct_InfraBlessingReplacesModel() without return types